second childhood
老年的智力衰退时期
His mental decay is distressing.
他的智力衰退令人苦恼。
There is, however, a "remarkable range" of shrinkage among people who show no signs of mental decline, Coffey noted.
然而，科菲指出，在没有智力衰退迹象的人中有“很明显的”大脑萎缩现象。
"A hot topic down the road," Coffey said, will be whether education even late in life has a protective effect against mental decline.
科菲认为，“接下来要解决的热门话题”是接受较晚的教育是否具有防止智力衰退的攻效。
I'm not in my second childhood.
我没有变成老糊涂 [我的智力尚未衰退] 。
Ageing is accompanied by a slow degeneration of his mental faculties.
他随着年纪增长, 智力逐渐衰退.
Mental and physical deterioration both occur naturally with age.
随着年龄的增长，心智和体力自然衰退。
The Declination and Development of the Modern Aged s Intelligence --Questions About the Heory of Crystallized and Fluid Intelligence of R B Cattell;
现代老年人智力的衰退与发展——关于卡特尔晶体智力—液体智力理论的质疑
"Dementia: Chronic, usually progressive deterioration of intellectual functions."
痴呆: 因大脑的病理改变而引起的慢性、进行性的智力功能衰退。
His influence is on the ebb.
他的影响力逐渐在衰退。
His powers are failing, ie He is becoming weak.
他的体力正在衰退.
His judgment seems to have waned.
他的判断力似乎衰退了。
His influence [popularity] has waned.
他的势力 [声望] 已衰退。
His sight is beginning to fail.
他的视力开始衰退。
His eyesight is failing.
他的视力渐渐衰退了.
His eyesight is going.
他的视力正在衰退。
To decline in health or vigor;waste away.
衰弱，消瘦在健康或精力方面衰退；变得衰弱
These decrements in intellectual behavior were found in firemen exposed to carbon monoxide at 100 ppm for varying periods of time.
在不定期地暴露于100ppm浓度的一氧化碳的瓦斯检验员中，发现了这种智力行为的衰退。